A concentrated tank cleaning device and electro-deposition cobalt production system

Abstract

The utility model discloses a kind of concentrated tank cleaning device and electrodepositing cobalt production system, be configured in connecting concentrated tank, the inside hollow of concentrated tank, concentrated tank cleaning device includes: stirring assembly and cleaning component, stirring assembly includes stirring paddle and rotating shaft, stirring paddle is built into concentrated tank, rotating shaft is connected in stirring paddle, and with concentrated tank rotation connection, cleaning component includes at least one cleaning piece and driving part, cleaning piece is relatively set to the bottom inner wall of concentrated tank, driving part is connected in rotating shaft and cleaning piece, for driving cleaning piece to slide close to or away from bottom inner wall.The utility model can effectively solve the problem that the crystalline salt formed on the bottom inner wall of concentrated tank due to the high concentration of cobalt chloride by using conventional high-pressure water gun flushing, thereby leading to poor cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of cobalt electrolytic production technology, specifically to a concentration tank cleaning device and a cobalt electrolytic production system. Background Technology

[0002] In industry, cobalt is typically produced by electrowinning cobalt using a hydrochloric acid system. During the electrowinning process, the electrolytic reaction is as follows: at the anode, chloride ions lose electrons to generate chlorine gas, and at the cathode, cobalt ions gain electrons to generate cobalt.

[0003] For example, Chinese invention patent CN113881966A, entitled "An Electrolytic Cobalt Circulation System and its Circulation Process for Balancing Electrolyte Acidity," describes a circulation system comprising an electrolytic circulation mechanism, a tubular reactor, a gas-liquid separation mechanism, and a concentration adjustment mechanism connected sequentially via pipelines, forming a loop. This system connects the electrolytic circulation mechanism, tubular reactor, gas-liquid separation mechanism, and concentration adjustment mechanism in sequence to form a loop. The tubular reactor facilitates the synthesis of hydrochloric acid from most of the chlorine and hydrogen in the lean electrolyte after electrolysis by the electrolytic circulation mechanism, balancing the acidity of the lean electrolyte and reducing the need for hydrochloric acid replenishment, thus effectively lowering costs. Simultaneously, the tubular reactor synthesizes some of the hydrogen and chlorine in the lean electrolyte into hydrochloric acid, reducing the variable amount of solution in the electrolyte circulation process and the release of hydrogen and chlorine, thereby reducing potential risks and effectively improving the safety of industrial production.

[0004] In actual production, due to the high concentration of cobalt chloride in the concentration tank, crystallized salts are easily formed and precipitate out, adhering to the bottom inner wall of the concentration tank. It is necessary to clean it regularly, but conventional high-pressure water jet rinsing cannot completely remove the crystallized salts. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a cleaning device for a concentration tank and an electrolytic cobalt production system. This solves the technical problem that the conventional high-pressure water gun used to wash the bottom inner wall of the concentration tank, which forms crystalline salts due to the high concentration of cobalt chloride, results in poor cleaning effect.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, this utility model provides a cleaning device for a concentration tank, configured to connect to a concentration tank, wherein the concentration tank is hollow inside and includes:

[0008] A stirring assembly includes a stirring paddle and a rotating shaft, the stirring paddle being built into the concentration tank, and the rotating shaft being connected to the stirring paddle and rotatably connected to the concentration tank; and

[0009] A cleaning assembly includes at least one cleaning component and a driving component. The cleaning component is disposed relative to the bottom inner wall of the concentration tank. The driving component is connected to the rotating shaft and the cleaning component and is used to drive the cleaning component to slide closer to or away from the bottom inner wall.

[0010] In some embodiments, the cleaning assembly further includes a connecting sleeve, which is slidably fitted onto the rotating shaft and connected to the cleaning member and the driving member, for allowing the cleaning member to slide relative to the rotating shaft along the axial direction of the rotating shaft.

[0011] In some embodiments, the driving member includes a linear driving part and two hinge seats. The linear driving part has a fixed end and a telescopic end. The fixed end of the linear driving part is connected to the rotating shaft via one of the hinge seats, and the telescopic end is connected to the connecting sleeve via the other hinge seat.

[0012] In some embodiments, the connecting sleeve has two sliding grooves along the axial direction of the rotating shaft, and the cleaning assembly further includes two limiting blocks, which are arranged in a one-to-one correspondence with the sliding grooves. One end of the limiting block is detachably connected to the rotating shaft, and the other end is slidably embedded in the sliding groove.

[0013] In some embodiments, the rotating shaft has a first threaded hole relative to the slide groove, and the cleaning assembly further includes two first screws, one end of which is connected to one end of the limiting block and the other end is threaded to the first threaded hole.

[0014] In some embodiments, the cleaning component includes a connecting seat and a cleaning strip. One end of the connecting seat is connected to the connecting sleeve, and the other end extends along the inner wall of the concentration tank. The cleaning strip is detachably connected to the connecting seat and can movably abut against the bottom inner wall of the concentration tank.

[0015] In some embodiments, the cleaning strip is an elastic structure.

[0016] In some embodiments, the cleaning member further includes a sliding bar and at least one elastic portion, the sliding bar being parallel to and spaced apart from the connecting seat, and the elastic portion being disposed between the sliding bar and the connecting seat and connected to the sliding bar and the connecting seat respectively.

[0017] In some embodiments, the connecting seat has at least one guide hole, and the cleaning component further includes at least one guide rod, one end of which is connected to the sliding strip and the other end is slidably inserted into the guide hole.

[0018] Secondly, this utility model also provides an electrolytic cobalt production system, including at least one electrolytic cell, a concentration cell, and a concentration cell cleaning device as described above.

[0019] Compared with existing technologies, the beneficial effects of the concentration tank cleaning device and cobalt electrowinning production system provided by this utility model include: the stirring paddle is built into the concentration tank via a rotating shaft to stir the liquid in the concentration tank, reducing the precipitation of crystalline salt in the concentration tank; the cleaning component is set relative to the bottom inner wall of the concentration tank and connected to the rotating shaft via a driving component, allowing the cleaning component to slide relative to the rotating shaft towards or away from the bottom inner wall of the concentration tank, enabling the cleaning component to move and abut against the bottom inner wall of the concentration tank. Compared with existing technologies, by setting a cleaning component that can slide relative to the rotating shaft, the cleaning component can abut against the bottom inner wall of the concentration tank under the drive of the driving component. After the cleaning component rotates around its axis with the rotating shaft, it can clean the bottom inner wall of the concentration tank, remove and redissolve the crystalline salt, thereby improving the cleaning effect and solving the technical problem in existing technologies where conventional high-pressure water guns are used to wash the bottom inner wall of the concentration tank, resulting in poor cleaning effect due to the high concentration of cobalt chloride forming crystalline salt. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of a concentrator cleaning device connected to a concentrator according to an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of the connection between the rotating shaft, the connecting sleeve, the first screw, and the limiting block provided in an embodiment of this utility model;

[0022] Figure 3 This is a cross-sectional view of a cleaning component provided in an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] Concentration tank 100; stirring assembly 200; stirring paddle 210; rotating shaft 220; cleaning assembly 300; cleaning component 310; connecting seat 311; cleaning strip 312; sliding strip 313; elastic part 314; guide rod 315; driving component 320; linear driving part 321; hinge seat 322; connecting sleeve 330; limiting block 340; first screw 350. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] To address the technical problem of poor cleaning effect caused by the high concentration of cobalt chloride forming crystalline salt on the bottom inner wall of the concentration tank 100 when using conventional high-pressure water jets, this invention provides a cleaning device for the concentration tank 100 and an electrolytic cobalt production system. This device features a cleaning component 310 that can slide relative to the rotating shaft 220. Driven by the driving component 320, the cleaning component 310 abuts against the bottom inner wall of the concentration tank 100. As the rotating shaft 220 rotates around its axis, the cleaning component 310 cleans the bottom inner wall of the concentration tank 100, removing and redissolving the crystalline salt, thus improving the cleaning effect.

[0027] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the cleaning device for the concentration tank 100 and the electrolytic cobalt production system in one embodiment of the present invention. The cleaning device for the concentration tank 100 is configured to connect to the concentration tank 100. The concentration tank 100 is hollow inside and includes: a stirring assembly 200 and a cleaning assembly 300. The stirring assembly 200 includes a stirring paddle 210 and a rotating shaft 220. The stirring paddle 210 is built into the concentration tank 100, and the rotating shaft 220 is connected to the stirring paddle 210 and rotatably connected to the concentration tank 100. The cleaning assembly 300 includes at least one cleaning element 310 and a driving element 320. The cleaning element 310 is disposed relative to the bottom inner wall of the concentration tank 100. The driving element 320 is connected to the rotating shaft 220 and the cleaning element 310 and is used to drive the cleaning element 310 to slide closer to or away from the bottom inner wall.

[0028] In this device, compared with the prior art, by setting a cleaning component 310 that can slide relative to the rotating shaft 220, the cleaning component 310 can abut against the bottom inner wall of the concentration tank 100 under the drive of the driving component 320. After the cleaning component 310 rotates around the axis of the rotating shaft 220, it can clean the bottom inner wall of the concentration tank 100, remove and redissolve the crystallized salt, improve the cleaning effect, and solve the technical problem in the prior art that the conventional high-pressure water gun is used to wash the bottom inner wall of the concentration tank 100, which is formed by the high concentration of cobalt chloride, resulting in poor cleaning effect.

[0029] Furthermore, in the cobalt electrolysis production process, as the electrolysis reaction continues, the concentration of cobalt chloride raw material will continuously decrease. It is usually necessary to set up a concentration tank 100, which temporarily stores a high-concentration cobalt chloride solution for quantitative replenishment to the electrolysis tank, thereby improving electrolysis and production efficiency. For reference, please refer to Chinese invention patent with publication number CN113881966A, entitled "An Electrolysis Cobalt Circulation System and its Circulation Process That Can Balance the Acidity Value of Electrolyte". This is a conventional setup known to those skilled in the art and will not be described in detail here.

[0030] Furthermore, the stirring paddle 210 is a common and readily available device on the market. It is connected to the output shaft of the drive motor via the rotating shaft 220. The output shaft of the drive motor drives the continuous stirring of the liquid in the concentration tank 100. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0031] In this embodiment, as Figure 1 , Figure 2 As shown, the cleaning assembly 300 also includes a connecting sleeve 330, which is slidably sleeved on the rotating shaft 220. The connecting sleeve 330 is connected to the cleaning component 310 and the driving component 320, and is used to make the cleaning component 310 slide relative to the rotating shaft 220 along the axial direction of the rotating shaft 220.

[0032] The connecting sleeve 330 is connected to at least one cleaning component 310 and is slidably connected to the rotating shaft 220 to realize the sliding connection between at least one cleaning component 310 and the rotating shaft 220.

[0033] In one embodiment, please refer to Figure 1 The driving component 320 includes a linear driving part 321 and two hinge seats 322. The linear driving part 321 has a fixed end and a telescopic end. The fixed end of the linear driving part 321 is connected to the rotating shaft 220 via one hinge seat 322, and the telescopic end is connected to the connecting sleeve 330 via the other hinge seat 322.

[0034] By utilizing the hinges between the fixed end and the telescopic end of the linear drive unit 321 and the rotating shaft 220 and the connecting sleeve 330 respectively, the sliding of the connecting sleeve 330 relative to the rotating shaft 220 can be achieved.

[0035] Furthermore, the linear drive unit 321 here is a commonly available and readily procurable push rod motor, hydraulic cylinder, and pneumatic cylinder. The push rod motor, hydraulic cylinder, and pneumatic cylinder are all conventional configurations known to those skilled in the art, and will not be described in detail here.

[0036] In one embodiment, please refer to Figure 2 The connecting sleeve 330 has two sliding grooves along the axial direction of the rotating shaft 220. The cleaning assembly 300 also includes two limiting blocks 340, which are set one-to-one with the sliding grooves. One end of the limiting block 340 is detachably connected to the rotating shaft 220, and the other end is slidably embedded in the sliding groove.

[0037] The limiting block 340 is connected to the rotating shaft 220 and cooperates with the sliding groove. It can not only prevent the connecting sleeve 330 from rotating relative to the rotating shaft 220, but also limit the connecting sleeve 330 from sliding out or separating relative to the rotating shaft 220 when the connecting sleeve 330 slides and the cleaning part 310 abuts against the bottom inner wall of the housing. This can improve the stability and safety of the device during operation.

[0038] In one embodiment, please refer to Figure 2 The rotating shaft 220 has a first threaded hole relative to the slide groove. The cleaning assembly 300 also includes two first screws 350, one end of which is connected to one end of the limiting block 340 and the other end is threaded to the first threaded hole.

[0039] The limit block 340 and the rotating shaft 220 are connected by a threaded connection to achieve a detachable connection structure.

[0040] Furthermore, the width of the groove is set between the diameter of the screw and the cross-sectional area of ​​the limiting block 340, so that the screw can be inserted into the groove, while the limiting block 340 can restrict the rotation or sliding of the connecting sleeve 330.

[0041] In addition, in some embodiments, the limiting block 340 and the rotating shaft 220 can be detachably connected by elastic snap-fit. For example, the side wall of the rotating shaft 220 is provided with a connection hole relative to the slide groove. One end of the elastic snap-fit ​​part is connected to the limiting block 340, and the other end can pass through the slide groove and snap-fit ​​with the connection hole. This will not be elaborated here.

[0042] In one embodiment, please refer to Figure 1 , Figure 3 The cleaning component 310 includes a connecting seat 311 and a cleaning strip 312. One end of the connecting seat 311 is connected to the connecting sleeve 330, and the other end extends along the inner wall of the concentration tank 100. The cleaning strip 312 is detachably connected to the connecting seat 311 and can move against the bottom inner wall of the concentration tank 100.

[0043] The cleaning strip 312 is arranged radially along the rotating shaft 220 and is connected to the connecting sleeve 330 via the connecting seat 311.

[0044] Furthermore, the sweeping strip 312 is detachably connected to the connecting seat 311 to facilitate the maintenance or replacement of the sweeping strip 312.

[0045] In some embodiments, there are multiple connecting seats 311, which are evenly arranged around the circumference of the rotation axis 220 to improve the cleaning effect. This will not be elaborated further here.

[0046] In one embodiment, the cleaning strip 312 is an elastic structure.

[0047] By incorporating a flexible cleaning strip 312, the adhesion between the cleaning strip 312 and the inner wall of the housing can be improved, thereby enhancing the cleaning effect.

[0048] Furthermore, the cleaning strip 312 here is a common and readily available device on the market, such as rubber or plastic. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0049] In one embodiment, please refer to Figure 3 The cleaning component 310 also includes a sliding bar 313 and at least one elastic part 314. The sliding bar 313 and the connecting seat 311 are parallel to each other and spaced apart. The elastic part 314 is disposed between the sliding bar 313 and the connecting seat 311 and is connected to the sliding bar 313 and the connecting seat 311 respectively.

[0050] The cleaning strip 312 is movably connected to the connecting seat 311 via the sliding strip 313 and at least one elastic part 314, so that the cleaning strip 312 can move relative to the bottom inner wall of the housing, and increase the fit between the cleaning strip 312 and the bottom inner wall of the housing, thereby improving the cleaning effect.

[0051] Furthermore, the elastic part 314 here is a spring, elastic block and spring sheet that are common and easy to purchase on the market. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0052] In one embodiment, please refer to Figure 3 The connecting seat 311 has at least one guide hole, and the cleaning component 310 also includes at least one guide rod 315, one end of which is connected to the sliding bar 313 and the other end is slidably inserted into the guide hole.

[0053] The guide rod 315 works in conjunction with the guide hole to improve the stability of the device operation and enhance the cleaning effect.

[0054] This embodiment also provides an electrolytic cobalt production system, characterized in that it includes at least one electrolytic cell, a concentration cell 100, and a cleaning device for the concentration cell 100 as described above.

[0055] The interiors of multiple electrolytic cells can be connected to the interior of the concentration tank 100 to replenish the electrolytic cells with a high concentration of cobalt chloride solution. For reference, please refer to Chinese invention patent with publication number CN113881966A, entitled "An Electrolytic Cobalt Circulation System and its Circulation Process for Balancing the Acidity Value of Electrolyte". This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0056] To better understand this utility model, the following is combined with... Figures 1 to 3 The technical solution of this utility model is described in detail below:

[0057] The stirring paddle 210 is internally mounted in the concentration tank 100 and rotates via the rotating shaft 220. It is used to stir the liquid in the concentration tank 100, reducing the precipitation of crystalline salts. The cleaning component 310 is positioned relative to the bottom inner wall of the concentration tank 100 and is connected to the rotating shaft 220 via the driving component 320. This allows the cleaning component 310 to slide relative to the rotating shaft 220, moving closer to or further away from the bottom inner wall of the concentration tank 100, thus enabling it to movably abut against the bottom inner wall of the concentration tank 100. Compared to existing technologies, by providing a cleaning component 310 that can slide relative to the rotating shaft 220, the cleaning component 310 can abut against the bottom inner wall of the concentration tank 100 under the drive of the driving component 320. As the cleaning component 310 rotates around the axis of the rotating shaft 220, it can clean the bottom inner wall of the concentration tank 100, removing and redissolving crystalline salts, thereby improving the cleaning effect.

[0058] In the specific working process of this utility model, the user first drives the stirring paddle 210 to rotate relative to the shell, and stirs the liquid inside the shell to reduce the precipitation of crystallized salt. At the same time, the connecting seat 311, sliding bar 313 and cleaning bar 312, which rotate with the rotating shaft 220, can also reduce the precipitation of crystallized salt. Then, when it is necessary to rinse the bottom inner wall of the concentration tank 100, the telescopic end of the linear drive unit 321 extends relative to its fixed end, driving the connecting sleeve 330, connecting seat 311, sliding bar 313 and cleaning bar 312 to extend relative to the rotating shaft 220, so that the cleaning bar 312 abuts against the bottom inner wall of the concentration tank 100. Finally, as the rotating shaft 220 rotates, the cleaning bar 312 always moves and abuts against the bottom inner wall of the concentration tank 100, and cleans and scrapes off the crystallized salt adhering to the bottom inner wall of the concentration tank 100, which can improve the cleaning effect.

[0059] This application, through the aforementioned structure and system, solves the technical problem in the prior art where the conventional use of a high-pressure water gun to wash away the crystalline salts formed on the bottom inner wall of the concentration tank 100 due to the high concentration of cobalt chloride results in poor cleaning effectiveness.

[0060] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A cleaning device for a concentration tank, configured to connect to a concentration tank, wherein the concentration tank is hollow inside, characterized in that, include: A stirring assembly includes a stirring paddle and a rotating shaft. The stirring paddle is built into the concentration tank, and the rotating shaft is connected to the stirring paddle and rotatably connected to the concentration tank. as well as A cleaning assembly includes at least one cleaning component and a driving component. The cleaning component is disposed relative to the bottom inner wall of the concentration tank. The driving component is connected to the rotating shaft and the cleaning component and is used to drive the cleaning component to slide closer to or away from the bottom inner wall.

2. The concentrator cleaning device according to claim 1, characterized in that, The cleaning assembly further includes a connecting sleeve, which is slidably fitted onto the rotating shaft and connected to the cleaning component and the driving component, so that the cleaning component slides relative to the rotating shaft along the axial direction of the rotating shaft.

3. The concentrator cleaning device according to claim 2, characterized in that, The driving component includes a linear driving part and two hinge seats. The linear driving part has a fixed end and a telescopic end. The fixed end of the linear driving part is connected to the rotating shaft via one of the hinge seats, and the telescopic end is connected to the connecting sleeve via the other hinge seat.

4. The concentrator cleaning device according to claim 2, characterized in that, The connecting sleeve has two sliding grooves along the axial direction of the rotating shaft. The cleaning assembly also includes two limiting blocks, which are arranged in a one-to-one correspondence with the sliding grooves. One end of the limiting block is detachably connected to the rotating shaft, and the other end is slidably embedded in the sliding groove.

5. The concentrator cleaning device according to claim 4, characterized in that, The rotating shaft has a first threaded hole relative to the slide groove. The cleaning assembly also includes two first screws, one end of which is connected to one end of the limiting block and the other end is threaded to the first threaded hole.

6. The concentrator cleaning device according to claim 2, characterized in that, The cleaning component includes a connecting seat and a cleaning strip. One end of the connecting seat is connected to the connecting sleeve, and the other end extends along the inner wall of the concentration tank. The cleaning strip is detachably connected to the connecting seat and can move against the bottom inner wall of the concentration tank.

7. The concentrator cleaning device according to claim 6, characterized in that, The cleaning strip has an elastic structure.

8. The concentrator cleaning device according to claim 6, characterized in that, The cleaning component further includes a sliding bar and at least one elastic part. The sliding bar and the connecting seat are parallel to each other and spaced apart. The elastic part is disposed between the sliding bar and the connecting seat and is connected to the sliding bar and the connecting seat respectively.

9. The concentrator cleaning device according to claim 8, characterized in that, The connecting seat has at least one guide hole, and the cleaning component also includes at least one guide rod, one end of which is connected to the sliding bar and the other end is slidably inserted into the guide hole.

10. A cobalt electrowinning production system, characterized in that, It includes at least one electrolytic cell, a concentration cell, and a concentration cell cleaning device as described in any one of claims 1-9.

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